<template>
  <div class="app-container">
    <!--工具栏-->
    <div class="head-container">
      <!--如果想在工具栏加入更多按钮，可以使用插槽方式， slot = 'left' or 'right'-->
      <crudOperation :permission="permission"/>
      <!--表单组件-->
      <el-dialog :close-on-click-modal="false" :before-close="crud.cancelCU" :visible.sync="crud.status.cu > 0"
                 :title="crud.status.title" width="500px"
      >
        <el-form ref="form" :model="form" :rules="rules" size="small" label-width="80px">
          <el-form-item label="类型">
            <el-select v-model="form.type"
                       class="filter-item" clearable
                       placeholder="1欢迎页2首页"
                       style="width: 370px"
            >
              <el-option key="1" label="欢迎页" value="1"/>
              <el-option key="2" label="首页" value="2"/>
            </el-select>
          </el-form-item>
          <el-form-item label="图片地址">
            <MaterialList
                v-model="picArr"
                :height="150"
                :num="1"
                :width="150"
                style="width: 915px;"
                type="image"
            />
          </el-form-item>
        </el-form>
        <div slot="footer" class="dialog-footer">
          <el-button type="text" @click="crud.cancelCU">取消</el-button>
          <el-button :loading="crud.cu === 2" type="primary" @click="crud.submitCU">确认</el-button>
        </div>
      </el-dialog>
      <!--表格渲染-->
      <el-table ref="table" v-loading="crud.loading" :data="crud.data" size="small" style="width: 100%;"
                @selection-change="crud.selectionChangeHandler"
      >
        <el-table-column type="selection" width="55"/>
        <el-table-column v-if="columns.visible('type')" label="类型" prop="type"/>
        <el-table-column v-if="columns.visible('pic')" prop="pic" label="图片地址">
          <template slot-scope="scope">
            <a :href="scope.row.pic" style="color: #42b983" target="_blank">
              <img :src="scope.row.pic" alt="点击打开" class="table-img"/>
            </a>
          </template>
        </el-table-column>
        <el-table-column v-permission="['admin','pic:edit','pic:del']" label="操作" width="150px" align="center">
          <template slot-scope="scope">
            <udOperation
                :data="scope.row"
                :permission="permission"
            />
          </template>
        </el-table-column>
      </el-table>
      <!--分页组件-->
      <pagination/>
    </div>
  </div>
</template>

<script>
import crudPic from '@/api/pic'
import CRUD, { presenter, header, form, crud } from '@crud/crud'
import rrOperation from '@crud/RR.operation'
import crudOperation from '@crud/CRUD.operation'
import udOperation from '@crud/UD.operation'
import pagination from '@crud/Pagination'
import MaterialList from '@/components/material'

// crud交由presenter持有
const defaultCrud = CRUD({ title: '', url: 'api/pic', sort: 'id,desc', crudMethod: { ...crudPic } })
const defaultForm = { id: null, type: null, pic: null }
export default {
  name: 'Pic',
  components: { pagination, crudOperation, rrOperation, udOperation, MaterialList },
  mixins: [presenter(defaultCrud), header(), form(defaultForm), crud()],
  data() {
    return {
      picArr: [],
      permission: {},
      rules: {
        id: [
          { required: true, message: '不能为空', trigger: 'blur' }
        ]
      }
    }
  },
  watch: {
    'picArr': function(val) {
      if (val) {
        this.form.pic = val.join(',')
      }
    }
  },
  methods: {
    // 获取数据前设置好接口地址
    [CRUD.HOOK.beforeRefresh]() {
      return true
    }, // 新增与编辑前做的操作
    [CRUD.HOOK.afterToCU](crud, form) {
      if (form.pic && form.id) {
        this.picArr = form.pic.split(',')
      } else {
        this.picArr = []
      }
    }
  }
}


</script>

<style scoped>
.table-img {
  display: inline-block;
  text-align: center;
  background: #ccc;
  color: #fff;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  vertical-align: middle;
  width: 32px;
  height: 32px;
  line-height: 32px;
}
</style>
